Can Crusher

By Kaylan Patel, Madeline Koldos, and Courtney Shadd

Agenda

Group Developme

nt

Timeline

Problem Statement

Background

Customer

Scope

Deliverables

10 Steps of the 12 Step

Process

Refine the Design

Lessons Learned

RolesO Leader:

O Kaylan PatelO Scribe:

O Maddie KoldosO Timekeeper:

O Courtney Shadd

Team ConstitutionArticle 1 All team members will be on time.Article 2 No team member will make fun of

another team member’s idea.

Article 3 Respect is to be shown at all times by each team member.

Article 4 After decision is made, team members will respect it.

Article 5 Members will live up to their commitments.

Article 6 Team members will not blame other for failures.

Article 7 No one-team member will dominate discussion.

Article 8 Team members will make an effort to contribute equally.

TimelinePlan Date Actual

DateWho’s Responsible

Task

Start

Comp

Start

Comp

   

1/27 1/27 1/27 1/27 Team Team development1/27 1/28 1/27 1/28 Maddie Research Background

information1/30 2/2 2/1 2/2 Maddie Scope Statement1/30 2/1 1/30 2/1 Maddie Decision Matrix2/2 2/4 2/1 2/4 Kaylan Brainstorm2/6 2/10 2/3 2/27 Kaylan CAD drawings2/10 2/11 2/21 2/24 Maddie Build Process2/13 2/13 2/21 2/22 Courtney Test Plan 2/14 2/15 2/14 2/23 Maddie Bill of Materials2/21 2/29 2/28 3/7 Team Build Prototype (Including

Rebuild)2/28 2/29 3/6 3/7 Team Test, Monitor, and Analyze3/2 3/5 3/2 3/6 Team Refine the Design3/5 3/8 3/1 3/8 Team Communicate Results

Problem StatementO The can crusher for Roadrunner

Trucking has to reduce the volume of the aluminum cans they dispose of by 70%.

BackgroundOAn easy way to reduce the amount of aluminum cans

ORecycles larger quantities in smaller spaces

OWhen cans are flattened it makes it easier to store and transport

OTakes a total of 60 days for a can to go through the recycling process

OCan crusher makes it easier to contribute to the recycling process

CustomerO Roadrunner Trucking Company O Integrated Technology teacher Mr.

Pritchard

Scope

O Design and build a can crusher to reduce the volume of aluminum cans by 70%

O Subject matter expertise:O Construction/ Technical – Mr.

Pritchard O CAD – Mr. HundO Calculations/ Math – Ms. Hernacki

O Materials:O ¼” hardwood plywoodO ½” hardwood plywoodO ¾” spruce

O Four specific customer constraints:O The max space it can occupy is 18” x 24”

x 30”.O Use a minimum of one simple machineO The aluminum can bin must hold 20 cansO Aluminum cans volume must be reduced

by 70%

DeliverablesOCan CrusherOTech ReportOPowerPoint

Research and Generate Ideas

O The force to crush a can is 100-120 lbs.O We could use wood glue, screws, or nails as

adhesiveO If the fulcrum point is closer to the load then

more force will be appliedO We could use hardwood plywood, spruce, or

oak for our woodO Lever should be long for less input forceO The volume of 20 crushed cans is 158.28in

cubedO We should use mostly ¾” wood for it’s strength

Criteria and Constraints

O Criteria:O It must use a minimum of one simple

machineO The aluminum can must fall into the

aluminum can bin once it is crushed. No human intervention is to be involved.

O The aluminum can bin must slide in and out of the crusher.

O All parts of the can crusher must be fabricated.

O The design is to be one unit.O Must be manually operated.

O Constraints:O The max space the can crusher

can occupy in 18” x 24” x 30”O The aluminum can bin must be

sized to hold 20 crushed cans.

Maddie’s SketchExplore Possibilities

Courtney’s Sketch

Kaylan’s Sketch

Parts Pros Cons

Screw vs. Nail Screws: good stability, low risk of injuries, reusable

Could run through wood, take longer to put in, can split

Nails: good stability, faster with a nail gun

Not reusable, nail guns risk of injuries

Spruce vs. Hardwood Plywood

Spruce: more stable, doesn’t have glue that melts, no fumes

Heavier

Plywood: lighter Higher possibility of cracking and has glues that can melt

Adhesive Pros and Cons

Sketches Pros Cons

Kaylan’s Very clear, design seemed like it would function well, dimensions clear

Not very robust

Maddie’s Design seemed like it would work, dimensions relatively clear

Design slightly confusing

Courtney’s Design seemed functional

Not all dimensions clear and not all isometrics there

Select an Approach

Criteria Kaylan’s Sketches

Maddie’s Sketches

Courtney’s Sketches

Price 3 3 3

Ease of Use 5 4 5

Reliability 5 5 4

Self- loading 5 5 5

Conservation of Materials

4 4 4

Ease of Assembly 4 5 4

Efficiency 5 4 3

Total 31 30 28

Sketches Decision Matrix:

Criteria Spruce Hardwood Plywood

Pressure-Treated Plywood

Efficiency 5 5 4

Price 5 5 3

Durability 5 4 2

Total 15 14 9

Type of Plywood Decision Matrix:

Criteria Screws Nails Wood Glue

Price 5 5 3

Efficiency 5 4 4

Durability 5 4 3

Total 15 13 10

Adhesives Decision Matrix:

• Using each one when best fitted to design

Bill of Materials

O ¼” hardwood plywoodO ½” hardwood plywoodO ¾” spruce woodO 1 ¼” screwsO 1 ¼” nailsO Wood glue O Rubber pad squaresO 1” dowels

Design Proposal

Test PlanTest Criteria How Tested Expected results Actual

ResultsCrushes Can 1st Time Crush can using

operation Can crushed 1st time

 

Reduces Can Size by 70%

 After can is crushed check the volume of the can that the volume matches 70% less than the original volume

 Reduced by at least 70%

 

Can Must Drop into the Bin

Run operation Can Drops into the bin 

 

Bin must fit at least 20 cans

 Crush 20 cans using the crusher and fit into the bin

 Fits 20 can (no hassle)

 

Bin slides in and out Assemble crusher and slide bin in and out

Bin slides in and out easily

 

Will be stable for the duration of the operation

Operate can crusher and check for any movement in the crusher

Crusher will be stable

 

That the Can will fall into crushing station (self-loading portion of project)

Assemble crusher and set 2 cans on the ramp watch if the fall into crushing station

Can falls into crushing station automatically

 

CAD Drawing AssembliesFinal Assembly

Bin Assembly

Can Crushing Station Assembly

Lever Assembly

Self loader Assembly

PrototypeO Work process was too general and more

details were added in the O Knew what specific parts to use but not

how to assemble them smoothlyO Prototype had to be modified a lot

Refine the DesignO Had to change the base so in turn,

the bin as wellO Used spruce instead of hardwood

plywood for more strengthO Redesigned crushing station and

lever so withstand more pressure and make more force

Lessons LearnedO Make sure your design works and

can perform the task before buildingO Use materials best fitted to designO Prepare to modify and redesign

your prototypeO Splitting up tasks and delegating

SummaryO Used more time management skills

to complete project ahead of timeO Had to redesign many portions of

the can crusher to fit requirementsO Learned to use new tools for the

projectO Split up tasks effectively